FreeBSD-stable-14-amd64-test - Build #838 - Still Unstable

FreeBSD-stable-14-amd64-test - Build #838 (c4290f3466624f8e26af83f3090c3b0f62512ca1) - Still Unstable

Build information: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/838/
Full change log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/838/changes
Full build log: https://ci.FreeBSD.org/job/FreeBSD-stable-14-amd64-test/838/console

Status explanation:
"Unstable" - some tests are suspected being broken by the following changes
"Still Unstable" - the failing test cases have not been fixed by these
                   following changes and this is a notification to note that
                   these changes have not been fully tested by the CI system

Change summaries:
(Those commits are likely but not certainly responsible)

9266d812eaf4d810eeb482b07fbe320d405e7361 by jrtc27:
depend-cleanup.sh: Fix pretend (-n) mode

be778581eb3168bcd8f9d8034e5175873efba416 by jrtc27:
depend-cleanup.sh: Fix overzealous rescue.mk cleanup

3f879ed6eee9618ff7611f5de7a73868ef0cebb9 by zlei:
sys/sys/kernel.h: Various whitespace fixes

b50851e8ebfa8acc77607a4ff1095ed6e4a56881 by kib:
prison_proc_iterate(): make it work for prison0

fff3323694f79e020ea139a020ed047bfeb578e3 by kib:
amdiommu: correctly initialize iommu.unit

c4290f3466624f8e26af83f3090c3b0f62512ca1 by kevans:
kern: restore signal mask before ast() for pselect/ppoll



The failed test cases:

5 tests failed.
FAILED:  sys.kern.sigsys.sigsys_test_off

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  sys.kern.sigsys.sigsys_test_on

Error Message:
/usr/src/tests/sys/kern/sigsys.c:70: sysctlbyname(name, &oldval, &oldlen, NULL, 0) == 0 not met

FAILED:  usr.bin.grep.grep_test.recurse_symlink

Error Message:
atf-check failed; see the output of the test for details

FAILED:  sys.netmap.ctrl-api-test.main

Error Message:
Returned non-success exit status 255

FAILED:  sys.netlink.test_netlink_message_writer.py.__test_cases_list__

Error Message:
Test program did not exit cleanly